JP2537643Y2 - Board-to-board connector - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector for connection between boards, and more particularly to a surface mount type connector capable of reducing the size between mutually connected parallel boards.

[0002]

2. Description of the Related Art In a conventional connection between parallel substrates, a pin connector is mounted on one substrate, and a socket connector corresponding to the pin connector is mounted on the other substrate so as to face each other, and these are fitted together. Had done by connecting.

That is, a pin connector 5 attached to one substrate A as shown in FIG. 9 and a socket connector 6 attached to the other substrate B as shown in FIG. Was.

As shown in FIGS. 9A to 9D, the pin connector 5 is attached to a connection surface side (lower surface side) of one substrate (referred to as an upper substrate) A.
In the fitting concave portion 51, pin contacts 53 are provided at predetermined intervals in the longitudinal direction (in the drawing, the pin contacts 53 are arranged in two rows). The pin contact 53 is vertically provided from the surface of the board A on the socket contact connection side, and is soldered to the board A on the board mounting portion side.

A socket connector 6 is shown in FIG.
As shown in (a) to (d), the other substrate (referred to as a lower substrate) B is mounted in a direction perpendicular to the connection surface (upper surface side) of the other substrate B. Is provided. And this socket contact 63
The board mounting portion is soldered to the board B.

As described above, the pin contact 53 and the socket contact 63 are oriented in a direction parallel to the connection direction so that they can be connected to each other.
It was press-fitted to 0,60.

[0007]

An invention is the way, in the conventional parallel board-to-board connector described above, the pin contacts 53 and socket contacts 63 is press-fitted to the insulator so as to face in a direction perpendicular to the substrate A, B Therefore, it is inevitably lengthened in the connection direction. Also, the spring portion of the socket contact 63 needs to be elongated in the connection direction to have elasticity.

For this reason, when the parallel substrates A and B are connected to each other, the distance between the parallel substrates A and B becomes large, which is against the demand for miniaturization.

Recently, devices have become multifunctional and compact.
For example, in a case where the size is extremely limited, such as a 2.5-inch hard disk drive unit mounted on a notebook personal computer, a conventional connector for connecting between boards is not suitable.

Therefore, a technical problem of the present invention is to provide a connector for connecting parallel boards, which can reduce the distance between the parallel boards at the time of connection and can contribute to the miniaturization of equipment for housing the boards. Is to do.

[0011]

SUMMARY OF THE INVENTION According to the present invention, a connector for connecting between substrates is provided.
Connector is a connector for connecting substrates arranged in parallel, becomes an insulator and, from the contact which is arranged at a predetermined interval thereto, wherein the contacts,
A press-fitting section press-fitted and held in the insulator;
U-turn so that the directions are opposite to each other from both ends of the entrance
And both ends bent in a U-turn shape.
By this, the contact is provided with a spring property,
And said insulator of said press-fit portion so that both end portions of the contact is exposed on both sides of each insulator
The press-fitting direction is perpendicular to the spring direction, and one of the two ends is housed in a part of the insulator so as to be soldered to a contact portion of one of the substrates. The other of the two ends is elastic with the contact part of the other substrate.
It is characterized in that it is configured to be contacted and connected .

[0012]

[0013]

[0014]

According to the present invention having the above-described structure, it is not necessary to lengthen the contacts in the connection direction between the substrates, and since each contact directly contacts both substrates, only one connector is required.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a perspective view showing an example of an insulator of the connector for connection between boards of the present invention, and FIG. 2 is a first view of the present invention.
FIG. 3 is a perspective view showing the board-to-board connector of the embodiment, FIG. 3 is a four-sided view of the board-to-board connector of the first embodiment, and FIG.
FIG. 5 is an explanatory diagram of a use state of the embodiment.

FIG. 1 shows an insulator 1 of a connector for connection between boards of the present invention, in which a receiving portion 11 for press-fitting each contact 2 described later in a horizontal direction (a vertical direction is a connection direction) is formed. I have.

The receiving portion 11 of the insulator 1 has
As shown in FIGS. 2 and 3A, 3B, 3C, and 3D, the press-fit portion 21 of the contact 2 is press-fitted.

The contact 2 is accommodated and held in the insulator 1 by inserting the contact 2 into the receiving portion 11 in a direction orthogonal to the spring direction (vertical direction in the drawing) of the contact 2 in order to maintain the holding.

The contact 2 is bent in a U-turn shape in the opposite direction at both ends of the press-fitting portion 21, and the lower end 23 is accommodated in an engagement window 13 formed on the back side of the insulator 1. It is in a state of being left. The shape of the lower end portion 23 is not limited to the illustrated one, but may be a shape that can be soldered to the contact portion of the substrate.

The upper end 25 of the contact 2 from the press-fitting portion 21 is bent in an inclined state and has a helical shape in order to impart a spring property.

FIG. 4A is a sectional view corresponding to the line AA of FIG. 3B, and the lower end 23 of the contact 2 is a connection portion with the substrate B.

The spirally formed upper end 25 of the contact 2 protrudes from the upper surface of the insulator 1 in an inclined state, and its free end forms a connection with the substrate A. And is facing.

The connection between the board A and the connector is made by lowering the board A relatively in the state shown in the figure. That is, as shown in FIG. 4B, when the board A is lowered onto the connector, the board A contacts the upper end 25 of the contact 2 and pushes down the upper end 25 against the spring property. In this state, the board A and the board B are mutually engaged and held by a predetermined engaging (fastening) means such as a screw.
The state in which the upper end portion 25 is pressed against the substrate A is maintained. As a result, the substrates A and B are electrically connected via the contact 2 of the connector.

In the first embodiment, the contact 2
The upper end 25, which is sufficient for the connection with the substrate A, is formed in a spiral shape. However, in the second embodiment, as shown in FIGS. It may be formed in a shape.

FIGS. 6 (a) and 6 (b) show an example of the vicinity of a connection portion between boards A and B which are connected to each other using the connector of the second embodiment. The lands Al and Bl are formed, and the upper end 25a and the lower end 23 of the contact 2 are connected to the lands Al and Bl, respectively.

In the second embodiment, the substrate A of the contact 2
The upper end portion 25a, which is a connection portion with the second end portion, is formed in a straight line. However, in the third embodiment, FIGS.
As shown in (c), the upper end portion 25b is divided into two parts in the longitudinal direction and formed by folding, and the free end side is configured as a contact portion.

In the third embodiment, two bosses 15 are formed at both ends on the lower surface of the insulator 1 for positioning with the substrate B. This boss part 1
The number of 5 is not limited to two. This boss part 1
As shown in FIG. 8A, a hole Bh through which the boss 15 is inserted is formed in the substrate B corresponding to FIG. Also in the third embodiment, the connection and fixing of the substrates A and B are performed by screws or the like.

However, such a positioning means is not only applied to the third embodiment, but can also be applied to the connectors of the above embodiments.

FIG. 8 (b) shows the contact position when the upper end 25b of the contact 2 of the third embodiment is connected to the land Al of the substrate A.

[0031]

As described above, according to the present invention, only one connector is required, and this connector also has a bent leaf spring in which both ends of the contact are U-turned in opposite directions to the press-fitted portion. Since it is a type, it overlaps in the direction perpendicular to the connection direction of the contacts, so that it does not have to be long in the connection direction. For this reason, since both ends of the contact are located close to the connection direction, the moment applied to the end to be soldered can be reduced, and a force that damages the solder connection is less likely to be applied. As a result, if the connector of the present invention is used, the distance between the boards to be electrically connected to each other can be reduced, and for example, high performance and miniaturization such as a 2.5 inch hard disk drive unit are required. The connection between the substrates in the object can be enabled.

[Brief description of the drawings]

[1] Ru perspective view der showing an example of the insulator used in the inter-board connection connector of the present invention.

FIG. 2 is a perspective view showing the connector for connection between boards according to the first embodiment of the present invention;

FIG. 3 is an explanatory view showing the connector for connecting boards between boards according to the first embodiment of the present invention, wherein (a) is a plan view; (B) is a front view. (C) is a bottom view. (D) is a side view.

4A and 4B are explanatory views showing a process of connecting the substrates according to the first embodiment of the present invention, wherein FIG. 4A is a side sectional view showing a state before connection (a line AA in FIG. 3B); It is. FIG. 3B is a side cross-sectional view showing a state at the time of connection (A in FIG. 3B).
-A line).

FIG. 5 is an explanatory view showing a connector for connection between boards according to a second embodiment of the present invention, and FIG. 5 (a) is a plan view. (B) is a front view. (C) is a bottom view.

FIGS. 6A and 6B show an example of a connection portion of a substrate in the second embodiment, and FIG. 6A is an explanatory diagram showing an upper substrate A. FIG.
(B) is an explanatory view showing the lower substrate.

FIG. 7 is an explanatory view showing a board-to-board connector according to a third embodiment of the present invention; FIG. (B) is a front view. (C) is a bottom view.

FIG. 8A is an explanatory diagram showing a lower substrate B connected to the connector of the third embodiment. (B) is an explanatory view showing a connection state between the connector of the third embodiment and the upper substrate A.

FIG. 9 is an explanatory view showing a pin connector of a conventional connector for connecting boards, and FIG. 9 (a) is a plan view. (B) is a front view. (C) is a side view. (D) is a diagram showing a state of connecting the substrate with A-A line cross-sectional enlarged view in FIG. 9 (a).

FIG. 10 is an explanatory view showing an example of a conventional socket connector of a board-to-board connection connector, where (a) is a plan view.
(B) is a front view. (C) is a side view. (D)
FIG. 11 is an enlarged cross-sectional view taken along the line AA in FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Insulator 2 Contact 5 pin connector (conventional example) 6 Socket connector (conventional example) 11 Contact press-in receiving part 15 Boss 21 Contact press-in part 23 Lower end of contact (connection part with lower substrate) 25 Contact Upper end (connection to upper substrate)
(First embodiment) 25a Upper end of contact (connection to upper substrate)
(Second embodiment) 25b Upper end of contact (connection to upper substrate)
(Third embodiment) 50 insulator 53 pin contact 60 insulator 63 socket contact A upper substrate B lower substrate Al land Bl land

Claims (1)

(57) [Scope of request for utility model registration] 1. A connector for connecting boards arranged in parallel, comprising an insulator and a contact arranged at a predetermined distance from the insulator , wherein the contact is press-fitted and held in the insulator.
Press-fit portion, and opposite directions from both ends of the press-fit portion, respectively.
And both ends bent in a U-turn shape so that
By bending the U-turn shape, the spring properties are imparted to the contact, and both end portions of the contacts of the press-fit portion so as to be exposed on both sides of each insulator
The direction of press-fitting into the insulator is orthogonal to the spring direction.
And one of the two ends is housed in a part of the insulator so that one of the two ends is soldered to the contact portion of one of the substrates, and the other of the two ends is the other of the other substrates. A board-to-board connector, wherein the board-to-board connector is configured to be elastically contacted and connected to a contact portion.